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The current endpoint reset logic defers the reset until the caller attempts to enqueue a new transfer to that endpoint. This is insufficient when dealing with endpoints behind a transaction translator, since the transaction translator is a resource shared between multiple endpoints. We cannot reset the endpoint as part of the completion handling, since that would introduce recursive calls to usb_poll(). Instead, we add the endpoint to a list of halted endpoints, and perform the reset on the next call to usb_step(). Signed-off-by: Michael Brown <mcb30@ipxe.org>
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